Trailer hitch coupler



FIG. 1 is a perspective view of a trailer hitch coupler, showing the new design;

FIG. 2 is a front elevation view of the trailer hitch coupler illustrated in FIG. 1;

FIG. 3 is a rear elevation view of the trailer hitch coupler illustrated in FIG. 1;

FIG. 4 is a left side elevation view of the trailer hitch coupler illustrated in FIG. 1;

FIG. 5 is a top elevation view of the trailer hitch coupler illustrated in FIG. 1;

FIG. 6 is a bottom elevation view of the trailer hitch coupler illustrated in FIG. 1;

FIG. 7 is a right side elevation view of the trailer hitch coupler illustrated in FIG. 1; and,

FIG. 8 is an enlarged perspective view of the handle and molded handle grip of the trailer hitch coupler illustrated in FIG. 1. 

CLAIM The ornamental design for a trailer hitch coupler, as shown. 